7 Maths 5 Line and angles part 2

Types of Angles


Supplementary angle

Two angles are supplementary if they add up to . Supplementary angles do not have to be congruent or next to each other.

Supplementary_angles.png


BG 0108G (H264)


Angle Basics


Complementary, Supplementary, and Vertical Angles

Practice questions:  http://www.ck12.org/book/CK-12-Basic-Geometry-Concepts/r9/section/1.8/


Adjacent Angles and linear Pair


adjacent_angles.JPG

Two angles are adjacent if they have the same vertex, share a side, and do not overlap angle PSQ and angle QSR are adjacent.


Adjacent angles.png

linear pair is two angles that are adjacent and whose non-common sides form a straight line. If two angles are a linear pair, then they are supplementary (add up to 180 deg) angle PSQ and angle QSR are a linear pair.


Linear pair.png


BG 0109E (H264)


BG 0109G (H264)


Complementary and Supplementary Angles


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